Apparatus for firing explosives by percussion-caps.



L. H. BROADWATER.

APPARATUS FOR FIRING BXPLOSIVES BY PERCUSSION GAPS.

APPLICATION FILED JUNE 24,1907.

921,6?05 Patented May 18, 1909.

ATTORNEYS.

m: ,vaiamz PL'YERS ca, WASHINGYUN. n. c I

U .i'fllllill Siiei if.

lillti Milli-INT @Flil flhl APPARATUS FOR FIRING EXPLOSIVES BY PERCUSSION-CAPS.

Application filed June 24,

Ohio, have invented a new and useful linl proveinent in Apparatus for liiring Explosives hy Percussioii-Caps, of which the tollowing is a full, clear, and exact description, reference heing had to the accompany drawings, which form a part of this s 'ieci'lication.

With certain characters ol high explosives, such, for instance, as solid nitro-glycerin or explosive gelatin, the ordinary percussion cap alone will not cause them, with certainty, to explode. In the ordinary method, a percussion cap is in contact with the high explosive. This percussion cap has a rod projects ing from it, which is called the start. When this start is struck, the cap is exploded, causing the explosion ol the high explosive. As stated hefore, with some classes of high explosives, the cap alone will no t cause the explosion.

The object ol my invention. is to obviate this dilliculty. Speaking generally, III-(00111- plish this as follows: i use in addition to the percussion cap, a metallic capsule in which is a. solid quick rending explosive, for instance, luhninate ol" mercury or a mixture of nitrotoluene, aluminium, magnesium and potas- From what h:

siuin chlorate. In this capsule I insert the percussion. cap attached, to the start, as it is called. The cap is in. contact with the explosive in the capsule and terms a hand For the cap. The cap may rest on the closed end of the capsule, at some intermediate point, or r1 1 ilO on top of the explosive in the *apsule. start pro ects heyond. the open end ol' the capsule and a portion of said start at that end is increased in. cross section to that ol the Q The capsule may he interior oi" the capsule. 'llll((l helore the insertion of the start and percussion cap, or a notch or opening may he 5 contact with said explosive and a water prool' sealing l'or said capsule.

sit in the enlarged portion ol the start hy means of which the explosive in ay he placed in the capsule alter the cap has been inserted. l

The open end of the capsule or the joint hetween the capsule and start is closed with. water-prool material, for instance, c asein. I;

can also use two capsules placed open. end to open end. with a start having a percussion cap at each end and. an enlarged central pori tion, one cap heing inserted in one capsule and the other cap in the other capsule. When by a blow upon the start" one 01 Specification of Letters Patent.

Patented May 18, 1909.

hoth ol' the caps, as the case may he, is exploded, the lulminate or other solid high explosive is caused to he exploded, which shat- Serial N0. 380,584.

l tcrs the cz'ipsulc and insures the explosion ol the high explosive ina-in change.

I will now describe the embodiment of my invention. shown in the accompanying drawings and then point out the invention. in lili( claims.

in the drawings: Figure l is a sectiona view showing a single capsule and cap, thi cap resting against the closed end of the ca sule. Fig. 2 is a view similar to Fig. l witl two capsules and two caps. Fig. 3 is a simi lar view showing cap resting upon the top 0 the explosive in the capsule. Fig. 4 is a men similar to Fig. 3 with two capsules and twi caps. 7

Speaking ol Figs. 1 and 3: (.1. '18 a capsuli having the closed. end. I) is the quick higl explosive therein. 0 is the start having the enlarged portionf, d the percussion ca at the end thereof and c is the water-pron scaling iinaterial.

ln Figs. 2 and l, there are two capsules (ti and a "start ,1 having the central enlargei portion /t. At each end of the start is 3 cap (I and c is the water-proof sealing mate rial closing the. joint of the two capsules 1 and the enlarged portion 71 ol' the start.

been hereinhel'ore stated the operation may he clearly lllli.l.(-l'SliOO(l.

llaving now l'ully descrihed. my invention Patent is:

l A device l'or tiring high explosives com prising a capsule containing a start, a pe cussioii cap carried thereby, and a solii quick rending explosive in said capsule 1: contact with the cap.

2. In coinhinal'ion, a capsule containing quick rendiug explosive, a. start, av pc cussion cap carried therchy, said cap heingi i). in coniliiiinition, a capsule containing l'uhninate ol' mercury, a start, a percus i sion cap carried therehv, said cap being 1' contact with said. explosive.

l. in combination, a capsule contan'nng l'ulniinate of mercury, a. start, a. percus sioii cap carried thereby, said cap being 1 l contact with said explosive and a watei l prool scaling for said capsule. v

5. In combination, a capsule containing nick Tending explosive, a start, av per-- ission cap carried thereby, said cap being); in intact with the explosive, said st art an enlarged portion within and extending ithout said capsule.

6. in combination, a cai isule containing a lick lending explosive, a. start, a perission cap carried thereby, said cap intact with the explosive, said start g an enlarged portion extending withou id capsule, and a water-prool seal between id head and capsule.

7. In combinatirm, a capsule. containing; a lininate ol' niermn'v, a start, a poi-c1 ntact with the explosive, said start havan enlarged portion extending without id. capsule.

8. In e-oinbiinrtion, av capsule containing a hninate of mercury, a start, a percns- 111 cap carried thereby, said cap being; in ntact with the explosive, said start ha van enlarged portion extending without .d capsule, and a water-prool seal between d head and capsule.

In combination, two capsules each havan open end, and means to connect said sules together with open end to open end, d capsules containing a quick rending ex-- vsive, a start, a percussion rap on each ll of said start, one cap being in contact ;h the explosive in one capsule and the ier cap with the explosive in the. other cape. .0. 1n C'Ol'llbilll-tlOll, two capsules each ring an open end, and means to connect :1 capsules together with open end to open l, said capsules containing a quick rendexplosive, a start each end of said start, one cap being contact with. the explosive in one rapsulo l the other cap with the explosive in the, or capsule, and a water-prool' seal lor the :11 ends ol' said capsules. 1. In combination, two eapsi 'ing an open end, and means to connect I 1 capsules together with. open. end. to open said capsules containing a .lnhninate nercury, a start, a percussion cap on h. end ol' said art, one cap being in tact with the explosive in one capsule and other cap with the ex 'ilosixui in the other sule.

In coinlnnation, two capsules each 111g an open end, and means to connect 1 1 being in haw is- )n cap carried thereby, said cap being, in

said capsules together with open end to open ineifcin'v, a. start. I

a percussion cap on each end ol said start one eap being in'cont-a .zt f with the explosive in one capsule and tho other cap with the explosive in the other i capsule, and a water-prool seal tor the open.

ends of said capsules.

.13. in combination, two capsules eacn having an open end, and means to connect said. capsules together with open end. to open end, said c:,1.psules containing a quick rending' explosive, a start, a percussion cap on. each end ol' said start, one cap being in contact with the explosive in one capsule and f the other cap with the explosive in the other capsule, said start having an enlarged. central portion. 1 i l l-Ll. in. combination, 1 having an open end with open end to open end, said capsules containing a quick rcnd ing explosive, a start, a. percussion cap on each end. ol said start, one cap being in cont-act with the explosive in one capsule and the other cap with the explosive in the other capsule, said start having an enlarged central portion, and a water-proof seal between said. head and said capsules.

two capsules each .ln combination, two capsules each having an open end, and means to connect 3 said capsules together with open end end, said capsules containing a l'ulininatc ol" inercnr -"starlfl', a percussion cap on each end of said start, one cap being in contact with. the explosive in one capsule and the i other cap with the explosive in the other capsule, said start having an. enlarged central portion.

1G. in ti()l1ll)i1littl(.)ll, two capsules each having an open end. with. open end to open end, said capsules containing a l'ulniinate ol' mercury, a start, a percussion cap on. each 5 end. of said start, one cap being in contact with the. explosive in one capsule and the lother cap with the explosive in the other capsule, said start' having an enlargedceniral portion, and a \V'Ettlll'flH'OOl seal betweiai aid head. and said. capsules.

T... testimony ol' which invention, l have iereunto set in hand, at Philadelphia, on .his Lllth dag, ol' June, 1907.

to open i "it i ti losses Iii i nL'roN,

; end, said capsules containing :1 l'nhninatc ol' 

